Blanking-out eyelets



Oct. 2, 1923. 1,469,757

E. L. SIBLEY. 2D

BLANKING OUT BYELETS Filed Sept. 30 1921 Patented Oct. 2, 1923.

UNITED STATES 1,459,751 PATENT oF icE.

EDWARD L. SIBLEY, 2D, or snnnme'ron, VERMQNT, AS'SIGNORTO EDWARD L.sIBLnY MANUFACTURING COMPANY, INCORPORATED, or nnnmnoron, VERMONT, A conPORATION OF VERMONT.

. i- BL'ANKING-OUT EYELETS.

Application filed September 30,1921. Serial No. 604,298

To all whom it may concern:

Be it known that I, Eo'wano L. S nner, II, a citizen of the UnitedStates, residing at ilennington, in the county of Bennington and StateofVermont, have invented a cer; tain new and useful Improvement inBlanking-Out Eyelets, of which the foll'ou'ingis a full, clear, andexact description.

The Well known Challenge eyelet of the Sibley Patent No. 358,225,.datedFebruary 22, 1887, has been manufacturedcomn ercially in a somewhatdifferent form from that described in the patent. Ordinarily,

instead of having four sections or fingers, as in the patent, it hasfive section or fingers, and the blanks have been cutfrom brass ribbonby means of suitable 'punchgpresses. In this process of n'ianufacturethere been an undue proportion of Waste or scrap, in some cases theproportions being. three pounds of waste or scrap to two pounds ofeyelets out of a five pound ribbon of brass, thus unduly increasing the,cost of manufacture Owing to the star-like or radiate form of theblank, it has been diflieult to avoid such waste or scrap,butinaccordance with the present invention such Waste or scrap has beenreduced to a minimum and the output of eyelets proportionatelyincreased.

In one form of the present invention, three rows of blanks are cut froma single strip of brass of considerably less width than three times thewidth of the ordinary ribbon from which a single row has been cut inaccordance With'the former practice. In other Words, the output ofeyelets may be tripled in using a ribbon considerably less than threetimes the Width heretofore used in cutting out a single row.

The principle of the present invention is embodied in cutting aplurality of rows of star-shaped or radiate blanks of the characterreferred to from a ribbon of metal either by alternately running theribbon through the cutting or punching machine in one direction for onerow and then re- In the accompanying drawings illustrating the inventionin the several figures of which like parts are similarlydesignated,Figure 1 is anv elevation of a. common form offChallenge eyelet, andFig-i2 is a top plan View thereof, the eyelet in both views ,beingshowngreatly enlarged. Fig. 3,. is a plan view of the blank used in.the-wnstruction of such an eyelet as that shown in Figs. 1 and 2, andFig. El is a vertical section of the eyelet taken in the plane oflineA-4 Fig. 2. Fig. 5 is a plan view of a piece of stock, also greatlyenlarged, showing the invention applied to cutting or punching out-threerows of blanks, such as shown in l1ig. -3, either one row at a time or.all of the rowssimultaneously. v

The blank comprises the-solid central portion 1, formingthehead orleading end 2 of the eyelet, which is forced through the material to beeyeleted, in the well known way of using Challenge eyelets; the radialsections ,or fingers3 whichform the barrel 4, and. the lateral arcuateextensions 5 which form the. foot or fiange;6 ofthe eyelet. j

Thereblanksare cut from suitable stock, such as soft drawn brass, inribbon form. In .the presentinstance, the cutting or punching machinehas one cutting element arranged parallel with the length of the ribbon,so that one of the sections or fingers will extend parallelwith suchlength,'same being indicated .by the cuts 7'in Fig. 5. The stock is runthrough the press so as to cut a row of blanks from one edge, and asnear such edge as possible, as indicated at A; then the ribbon is runthrough in the opposite direction so as to cut out a row of blanks fromthe center of the stock, the parallelism of section or finger indicatedby cut 7 being preserved but said out being reversed, as indicated at B;and then the ribbon is run through in the same direction as in makingthe first row so as to cut a row of blanks from near the opposite edgeof the ribbon, as indicated at C. In each instance the material for thesections or fingers is cut from the stock between adjacent sections orfingers. In all of the rows the parallel cuts 7 for one blank extendbetween adjacent cuts of the next blank. and in row B the cuts for theother sections or fingers extend in between the adjacent cuts of therows on both sides ill plying the number of rows of cuts the proportionof scrap to blanks is greatly reduced.

5 This is true in a twq row rih ho n and -:ilsojn u n e o f threeor morerows.

One of the important advantages of the present invention is that :1maximum numh her of star-shaped blanks can be cut from a given square ofstock with 'a =niinimuhiof waste, a nd that the greater the sqnare oi'stock the greateris the predu'ct and theless the scrap. These resultsare due to the fact that not only do the fingers-0f the blanks in' o'ne'ro w enter the steck hehteen the fingers ofadj-acent blanltsboth' infinnt and behi'ncL-but other 'fiiigers' enter the stoelt between thefingers of blanks in'thfe 'Tows on ppposite s iclesy- I \Vhile'I have"sc'ribed .myfim ention as being-carried 01'1't"b'y cutting 6nef-r6W ofblanks at a time"and-=revrsiag fl g steak "fer each'eacceedin g row; itis Within iiiy 'in Vehtibn to cut all 0ftlte nHWst-iininllfane misty; asby using a gang pi'sqgwitn the punches arrangedso that the cluts will be3 inade' between parts asprv'ion'sly eicplainetl.

The arrangement *fl' exits shown isof le mdnstra'ted practicability,bu'twiarigitibns ther'eo'ff mfisidemd; tube within the principle of theinvention and the claims following. 1

' What I'claifm'is:f A

-1. The method of blanking gintfeyelets havi'riq' radiate or starhapedb1anl' s,"prnvitled wi'th 'a pliirsility of sections 0r fingers, sameconsisting in punching a plurality of substantially parallel rows fsuehhlim'ks with the sections or fingersextendin'g in between the cutsofthe sections or fingers of atljacent blanks of the samerow a'nd' alsothe parallel row or rqws on'eithei' 'sirle."

'2. The m' eth0d or blanking mit'eyelet's having ra'diate or star-shapedblhnks,-pr0'- substantially parallel rows of such blanks with 2% eflteeetieeeeizt egez :ee efi a: lengthwise, (if the sitggelr QIQJQYWIBQQ thespace between acljaceii tl ii nger entsgl-a q l thelbther sections orlingers extending into the spaces betweenrfinger cuts in an adjacentrow.

3. The method of blanking out eyelets havin'g'r'adia'te or star-shapedblanks, provided with a. plurality of sections or fingers, sameconsisting in punching a row of blanks lengthwise (if the stoelnailcljthen running theflstbck thrdfi irh the punching nlachine inthbllginsit ditbt'i0n= anrl' pundhing out a second row of bltlnks sothat said "second rowel? lila'nks w ill b'e liezlftled intlie'dpfid'site direction to the first and-repeating these pperationsfor any "flesiied number *of rows, the teetie s 'onfillgqe of 'eaeh'roht' bi e-in}; c ut frbifi 'tll'e sw it beux en 'adjafii t section orfiiiger eats wheievr the seetionfsfor fingets alttna'te f Y

